Lubricator.



Patented Dec. 15, 1914.

lil? l l m l In Il I" H. D. BOYER.

LUBBIGATOR.

APPLIOATION FILED Hmm, 1914.

Wi www eo 'He Nolelels PEIERS CD.. PHOTO-Livin.. wAsHlNlwN4 nA l 4.i Irun STATES PATENT i HARRISON D. ROYER, or PHILADELPHIA, PENNSYLVANIA, AssIGfNoR To :BOYER MANUFACTURING COMPANY, A .CORPORATION ork NEW JERSEY.

LUBRICATOR.

Specication of Letters Patent.

Patented Dec. 15, '1914.

To all 'whom it, ma concern vBe itknown that I, HARRIsoND. BOYER,

a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements lin Lubricators, of whichthe following is aspecication. p l, My inventionrelates to new and'useful improvements in` Lubricators, and has for its Object .to aprovidean eXceedlngly-slmple and effective device of this character which will feed a lubricant to a bearing `under pressure; will maintain approximately the same pressure upon said lubricant so as to insure the steady feeding of the same .and lwill throw a signal when the pressure has been released from 01T they lubricant. p

With `these ends in view lthis invention consists inthe details offconstruction and `combination ofy elements hereinafter set forth and then specifically designated by the claims.

In. order that those skilled inthe art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by numeral to the accompanying drawing forming a part of this specification, in which- Figure l, is lubricator. Fig. 2, isa central vertical section thereof showing the signal up. Fig. 3, is avsection of the upper portionv oftherlubricator taken at right angles to Fig. 2 showing themechanism in the position'assumed when pressure is exerted uponthe lubricant. Fig. #l is a top planview. Fig. 5,'is a bottom plan view. Fig. 6, is a section at theline mof Fig. 2; and Fig. 7, is acentralvertical section of the upper member ofthe lubrioator, showing a fmodification of the means for lexerting pressure upon the lubricant.

In carrying-out my invention as embodied in Figs. l to 6 inclusive, l represents the body of the device which is in tubular form, the lower end thereof beingy threaded into the base 2, the latter terminating in a threaded nipple 3, by which it may be screwed into the threaded opening to a machine bearing inthe .usual manner. As here shown the base has awrench hold formed thereon and inside of this base is located ya anfelevation of my improved y funnel preferably made of copper or other high heat conducting material, the spout of said funnel lextending through the nipple and secured against displacement by havingk its lower end flangedoutward as clearly shown'in Fig. 2. This body base and funnel formthe lower member. of the device, while the upper member consists'of the tubular section 5 and top 6, the latter being here shown as threaded on the upper end of the f tubular` section. The upper member is threaded into the lower member as clearly shown, .and has ttedtherein a plunger 7 which isforced downward by the spring 8. v9 `represents a post whichis secured to the vplunger and projects upward therefrom and has formed therein a slot 10 in which the link ll is hooked, the upper end of said link nal disk 13. By this arrangement when the plunger is forced to its lower limit of movement the signal disk willbe so actuated as Yto be broughtto a vertical position as clearly `shown in Figs. 1 and 2, but when the plunktop and this upwardmovement of the vpost will lower the signal, but as the lubricant is gradually ittedtoxthe bearings by the pressureexerted. thereon by the plunger, the consequent movementof the plunger will bring the upper wall of the slot l() into contact with theflinkl'l whenthe plunger hasnearly reached its lower limit and the lowest slight movement .of the plunger rthereafter in .finally reaching its lower limit will elevate the signal vand indicate to the attendant that the pressure has been removed from the lubricant. It is only necessary for the attendant to screw down upon the upper member until the post 9 again contacts with the top, preventing further movement of the upper* member when the operation `just de* scribed will be repeated. The limitation of -the compression of vthe spring by the post being hooked into the opening 12 of the s'igcoming in contact with the top prevents the attendant from putting an overpressure upon the lubricant, and as the spring acts through only a small portion of its length, the pressure upon the lubricant will vary but slightly, giving an uneven feed of the lubricant. When the upper member has been threaded downward to its lowest limit and theplunger has reached its lowest limit of movement, the heat transmitted from the bearing to the copper funnel will be suilicient to cause the remaining lubricant to continue to feed to the bearing so that after the In Fig. 7 I have shown a slight modifica-v tion of the means for exertingv pressure upon the lubricant which consists of a hollow plunger 13 to which the post 9 is secured and inside of this plunger is located a disk 14 sliding upon the rod 15,- its downward movement'being limited by the nut 16. By this modied form of construction the air is trapped in the plunger 13 when the upper member is screwed into place and the threading of the latter downward upon thelubricant will cause said lubricant to rise in the hollow plunger carrying the disk 14 upward therewith, and compressing the air. As the air thus compressed reaches a pressurey abovethe tension'of the spring 8, the plunger itself will move upward within the upper member thereby lowering the signal. The disk 14 is not intended to be fitted air tight in the plunger but` only serves as a cover for the lubricant .to prevent the compressed air above the same from blowing through it in holes. rIhis construction permits the lubricant to be fed by air pressure and when this air pressure has dropped below a predetermined point the spring will move'the plunger downward sufficiently to throw the signal, thus indicating to the attendant that the lubricator needs further adjustment or vrelling as the case may be.

Of course I do not wish to be limited to the exact details of construction as here shown, as these may be varied within the limits of the appended claims without departingl from the spirit of my invention.

Having thus fully described my invention, what I claim as new and useful, isy 1. vIn a lubricator thecombination` of a base, a body secured thereto, an upper member consisting of a tubular section adapted to thread into the body and a top secured to the upper end of the tubular member, a

spring actuated plunger fitted to slide within the tubular section and a signal and means for actuating said signal on the plunger. f

2. In a lubricator a. plunger a signal adapted to lie against one of the outer walls of the lubricator and means connecting thev plunger and signal whereby said signal'may be thrown to a vertical position at the end of the movement of the plunger.

3. In a lubricator provided with a'plunger a signal adapted to lie in a normal horizontal position and be thrown to the vertical position by the plunger at the end of the l movement of said plunger.

4; A lubricator consisting of a body and an upper portion, lthe latter, threaded into the former, a plunger fitted to slide within the upper portion, a signal engaging the outside of the upper portion and means passing through the upper rportion for connecting the plunger with the signalV whereby said signal lies against the upper portion when the plunger is operating and is thrown or elevated when at the end of the plunger stroke.

'5. A grease cup consisting of a body and an upper portion the latter threaded into the former, said upper portion having an opening in its top provided with 'beveled surrounding walls, a plunger'fitted to slide vwithin the upper portion, a spring for actuating said plunger, a signal, means for connecting the signal and plunger whereby a portion of vsaid signal may be drawn into the opening in the top of the upper portion at the end of the plunger strokev to throw said signal.

6. In combination with a lubricator a plunger adapted to'force the lubricant from the lubricator to the bearing, a spring for actuating the plunger in one direction, a

signal member so located upon the lubricator as to lie fiat thereon while the lubricant is being fed and means connecting the plunger and the signal member, said means adapted'to elevate the signal member after the manner of a semaphore at the end of the stroke ofthe plunger..V

7 In combination with a lubricator ak spring actuated plungerk adapted to feed the lubricant contained in the lubricator to a bearing, a signaldisk located upon the top of the lubricator and means connecting the plunger with ksaid signal disk in such manner that said signal disk'will lie at upon the lubricator during the feeding of the lubricant by the movement of the plunger, but be .elevated at the end ofthe stroke of said plunger. f v

8. A lubricator consisting of a body member, a top member threaded in the iirst namedmember, a plunger fitted to slide in the top'A member, aspring 1 for forcing said plunger downward, a signal disk located at' the top of the top member', andvmeens conn t. In testimony whereof, I have hereunto nectng the plunger with the signal disk in aiXed my signature in the presence of two such manner that said signal disk Will he subscribing Witnesses.

at throughout a portion of the movement HARRISON D. BOYER. 5 of the plunger, but brought to a Vertical po- /Vtnesses:

etony at the end of the stroke of said S. S. WILLIAMSON, t

plunger. MARY E. HAMER.

Copies of this patent may be obtained for ve cents each, by addressing the "Commissioner of Patents,

Washington, 2D. C. 

